CN216997426U - Overload and rope-loosening safety device for hoisting equipment - Google Patents
Overload and rope-loosening safety device for hoisting equipment Download PDFInfo
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- CN216997426U CN216997426U CN202122981274.1U CN202122981274U CN216997426U CN 216997426 U CN216997426 U CN 216997426U CN 202122981274 U CN202122981274 U CN 202122981274U CN 216997426 U CN216997426 U CN 216997426U
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- pull rod
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Abstract
The invention relates to an overload and rope-loosening safety device for hoisting equipment, belonging to the field of intelligent storage; comprises a pull rod, a support, a spring cover, an adjusting nut, a microswitch and a collision block; the support is fixed on the upright post of the stacker, two vertical plates are arranged on the support in parallel and oppositely, and coaxial through holes are formed in the two vertical plates and used for penetrating through the pull rod; one end of the pull rod is connected with the steel wire rope, the other end of the pull rod sequentially and coaxially penetrates through the left vertical plate, the spring cover, the adjusting nut and the right vertical plate, and a collision block is arranged at the end head of the other end of the pull rod; two micro switches are installed on the support outside the right vertical plate, the two micro switches are located on two axial sides of the pull rod respectively and installed in a staggered mode, one micro switch is close to the right vertical plate and serves as an overload alarm switch, and the other micro switch is far away from the right vertical plate and serves as a rope loosening alarm switch. The invention pushes the collision block to do reciprocating motion between the two microswitches through the extension of the spring, and can effectively ensure the service life of the steel wire rope in the actual operation process of the stacker.
Description
Technical Field
The invention belongs to the field of intelligent storage, and particularly relates to an overload and rope loosening safety device for hoisting equipment.
Background
With the rapid development of Chinese economy, modern logistics storage becomes an important ring of Chinese economic development. The intelligent stacker is an important access means for modern logistics storage during storage, and the advanced intelligent safe stacker is a guarantee for efficient, high-quality, low-cost and zero-accident operation of the whole logistics process. In the process of ensuring safe and reliable operation of the stacker, the conventional stacker is directly connected with a cargo carrying platform through a steel wire rope clamp, and effective early warning cannot be ensured for safety problems such as overload fracture and rope loosening of a steel wire rope; therefore, an overload and rope-loosening safety device is designed on the connection of the steel wire rope and the upper cross beam of the stacker to ensure the safe and efficient operation of the stacker.
In the patent number of the same type of patent stacker overload and rope loosening protection device: the overload and rope feeding device described in CN 202729747U is composed of an executing component and a switch group, and the power supply of the motor is automatically cut off to realize safe production by touching the press-in protection switch with chamfers at the upper and lower ends of the executing component. In the patent, the chamfer touch type device can cause the failure of the device because the chamfer cannot touch the press-in type protection open ring due to the deformation of the connecting rod or the installation error of the upper actuating element in the actual use process. The protection device who designs this time optimizes above-mentioned chamfer touching formula, touches the board 9 that hits that becomes bending with chamfer formula touching and touches, realizes the validity and the adaptation of touching and warp and the uncertain potential safety hazard that installation error caused.
Disclosure of Invention
The technical problem to be solved is as follows:
in order to avoid the defects of the prior art, the invention provides an overload and rope-loosening safety device for hoisting equipment, so that the safety and the reliability are realized when a cargo carrying platform runs up and down on a stacker. The safety device has simple structure and high reliability.
The technical scheme of the invention is as follows: an overload and rope-loosening safety device for hoisting equipment is characterized in that: the automatic stacking machine comprises a pull rod 1, a support 2, a spring 3, a spring cover 4, an adjusting nut, a microswitch 8 and a collision block 10, wherein the bottom of the support 2 is fixed on a stacker upright post and is used as a supporting part;
the support 2 is provided with two vertical plates in parallel and oppositely, and the two vertical plates are provided with coaxial through holes for penetrating through the pull rod 1; one end of the pull rod 1 is connected with the steel wire rope, the other end of the pull rod sequentially and coaxially penetrates through the left vertical plate, the spring 3, the spring cover 4, the adjusting nut and the right vertical plate, and the collision block 10 is arranged at the end head of the other end of the pull rod 1; the adjusting nut is fixed on the pull rod 1 through threads;
two micro switches 8 are mounted on the support 2 on the outer side of the right vertical plate, the two micro switches 8 are respectively located on two axial sides of the pull rod 1 and are installed in a staggered mode, one micro switch is close to the right vertical plate and serves as an overload alarm switch, and the other micro switch is far away from the right vertical plate and serves as a rope loosening alarm switch;
when the steel wire rope is in a slack critical state, the spring 3 pushes the spring cover 4, the pull rod 1 is driven by the adjusting nut to move towards the far end along the axial direction, the collision block 10 touches the far-end microswitch 8, and the stacker automatically gives an alarm and stops working; when the steel wire rope is in an overload critical state, the pull rod 1 drives the collision block 10 to move towards the near end along the axial direction, the collision block 10 touches the near-end microswitch 8, and the stacker automatically gives an alarm and stops working.
The further technical scheme of the invention is as follows: the adjusting nut comprises a first adjusting nut 5 and a second adjusting nut 6, which are both installed on the external thread in the middle of the pull rod 1 through threads, and the spring cover 4 is axially limited.
The further technical scheme of the invention is as follows: the spring cover 4 is of a flat plate structure, and a limiting ring is arranged at the outer edge of one side of the flat plate along the circumferential direction; the inner diameter of the limiting ring is larger than the outer diameter of the spring 3, and the limiting ring is arranged on the outer side of the spring 3 to realize radial limiting of the spring 3.
The further technical scheme of the invention is as follows: and a mounting platform is fixed on the support 2 at the outer side of the right vertical plate, and the two micro switches 8 are fixed on the mounting platform through switch seats 7.
The further technical scheme of the invention is as follows: the collision block 10 is in a cube structure.
The further technical scheme of the invention is as follows: the two opposite sides of the collision block 10 are both fixed with collision plates 9, the main body of each collision plate 9 is parallel to the side wall of the collision block 10, and one end of each collision plate 9 inclines towards the pull rod 1 to form a bent chamfer structure; the two collision plates 9 are in mirror image bending structures and can be in gentle contact with the two micro switches 8.
The further technical scheme of the invention is as follows: the outer side of the collision block 10 is fixed by a retaining ring 11 and a set screw 12 which are fixed at the end of the pull rod.
The further technical scheme of the invention is as follows: and a reinforcing rib is arranged between the vertical plate and the support 2.
The invention further adopts the technical scheme that: one end of the pull rod 1 is fixed with the steel wire rope through the rope clamp and the lantern ring.
Advantageous effects
The invention has the beneficial effects that: according to the invention, the spring 3 stretches to push the collision plate 9 to reciprocate between the micro switches 8, and when the steel wire rope touches the micro switches 8 through the pull rod 1 and the collision plate 9, the stacker is overloaded or loosens the rope to alarm. In the actual operation process of the stacker, the problem of overload safety of the stacker is particularly important because some front areas of the three-dimensional storeroom are not provided with the weighing sensors, and the service life of the steel wire rope can be effectively ensured.
Drawings
FIG. 1 is an isometric view of an overload and slack rope safety device;
FIG. 2 is a front view of the overload and slack rope safety device;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a partial view from the A-direction of FIG. 2;
description of reference numerals: 1. a pull rod; 2. a support; 3. a spring; 4. a spring cover; 5. a first adjusting nut; 6. a second adjusting nut; 7. a switch base; 8. a microswitch; 9. a striking plate; 10. bumping blocks; 11. a retainer ring; 12. and (5) tightening the screw.
Detailed Description
The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Referring to fig. 1-3, the overload and rope-loosening safety device for hoisting equipment comprises a pull rod 1, a support 2, a spring 3, a spring cover 4, a first adjusting nut 5, a second adjusting nut 6, a microswitch 8 and a collision block 10, wherein the bottom of the support 2 is fixed on an upright post of a stacker and is used as a supporting part;
the support 2 is provided with two vertical plates in parallel and oppositely, and the two vertical plates are provided with coaxial through holes for penetrating through the pull rod 1; one end of the pull rod 1 is connected with a steel wire rope, the other end of the pull rod coaxially penetrates through the left vertical plate, the spring 3, the spring cover 4, the first adjusting nut 5, the second adjusting nut 6 and the right vertical plate in sequence, and a collision block 10 is arranged at the end head of the other end of the pull rod 1; the adjusting nut is fixed on the pull rod 1 through threads;
the spring cover 4 is of a flat plate structure, and a limiting ring is arranged at the outer edge of one side of the flat plate along the circumferential direction; the inner diameter of the limiting ring is larger than the outer diameter of the spring 3, and the limiting ring is arranged on the outer side of the spring 3 to realize radial limiting of the spring 3.
The collision block 10 is of a square structure, collision plates 9 are fixed on two opposite sides of the collision block, the main body of each collision plate 9 is parallel to the side wall of the collision block 10, and one end of each collision plate 9 inclines towards the pull rod 1 to form a bent chamfer structure; the two collision plates 9 are in mirror image bending structures and can be in gentle contact with the two micro switches 8.
The outer side of the collision block 10 is fixed by a retaining ring 11 and a set screw 12 which are fixed at the end of the pull rod.
Referring to fig. 3 and 4, a mounting platform is fixed on the support 2 outside the right vertical plate, and the two micro switches 8 are fixed on the mounting platform through a switch base 7. The two micro switches 8 are respectively positioned on two axial sides of the pull rod 1 and are installed in a staggered mode, one micro switch is close to the right vertical plate and serves as an overload alarm switch, and the other micro switch is far away from the right vertical plate and serves as a rope loosening alarm switch;
when the steel wire rope is in a slack critical state, the spring 3 pushes the spring cover 4, the pull rod 1 is driven by the adjusting nut to move towards the far end along the axial direction, the collision block 10 touches the far-end microswitch 8, and the stacker automatically gives an alarm and stops working; when the steel wire rope is in an overload critical state, the pull rod 1 drives the collision block 10 to move towards the near end along the axial direction, the collision block 10 touches the near-end microswitch 8, and the stacker automatically gives an alarm and stops working.
The embodiment is an overload and rope releasing device for hoisting equipment, which comprises a tension rod 1 and a spring 3 to form a spring stroke device, wherein one end of the device is provided with a microswitch, a support 2 of the device is fixedly arranged on a stand column of a stacker, and the other end of the device is connected with a steel wire rope through a steel wire rope lantern ring and a rope clamp.
Wherein: one end of the overload and rope-loosening safety device is connected with a cargo carrying platform through a steel wire rope, the steel wire rope is connected with a pull rod 1 of the overload and rope-loosening safety device through a rope clamp and a lantern ring, the pull rod 1 penetrates through a hole in a vertical plate on the left side of a support 2, a spring 3 is sleeved on the pull rod 2 and leans against the vertical plate on the left side of the support 2, the other end of the spring 3 penetrates through a spring cover 4 and an adjusting nut 1, the adjusting nut 2 is installed on the pull rod 1, the pull rod 1 penetrates through a vertical plate on the right side of the support 2, a collision block 10 and a collision plate 9 are installed at the end of the pull rod 1, a switch seat 7 and a micro switch 8 are installed on the support 2 as shown in figure 3, and finally the collision block 10 is fixed at one end of the pull rod 1 through a retaining ring 11 and a fastening screw 12.
As shown in fig. 1, 2, and 3, the overload critical position and the slack critical position of the micro switch 8 are determined by design calculation. When goods are not stored on the goods carrying platform, the steel wire rope of the device is in a rope loosening critical state, when the tensile force of the steel wire rope is smaller than 1/4 of the self weight of the goods carrying platform, the rope loosening state of the steel wire rope is shown, the goods carrying platform is abnormal, the spring 3 pushes the pull rod 1 to move, the collision plate 9 on the pull rod 1 simultaneously moves to touch the farthest end to slightly move open 8, and the stacker automatically alarms and stops working. When the goods are fully stored on the goods carrying platform, the steel wire rope of the device is in an overload critical state, when the tensile force of the steel wire rope is larger than 1/4 of the total weight of the goods carrying platform and the goods, the steel wire rope is in the overload state, the stacker is overloaded, the steel wire rope pulls the pull rod 1 to move, the spring 3 is compressed through the spring cover and the adjusting nuts 1 and 2, the pull rod 1 drives the collision plate 9 to touch the microswitch 8, the stacker automatically alarms and stops working, and a safety alarm device for protecting the normal working of the steel wire rope is formed.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (9)
1. An overload and rope-loosening safety device for hoisting equipment is characterized in that: the stacking machine comprises a pull rod (1), a support (2), a spring (3), a spring cover (4), an adjusting nut, a micro switch (8) and a collision block (10), wherein the bottom of the support (2) is fixed on a stacking machine upright post and is used as a supporting part;
the support (2) is provided with two vertical plates in parallel and oppositely, and the two vertical plates are provided with coaxial through holes for penetrating through the pull rod (1); one end of the pull rod (1) is connected with the steel wire rope, the other end of the pull rod sequentially and coaxially penetrates through the left vertical plate, the spring (3), the spring cover (4), the adjusting nut and the right vertical plate, and a collision block (10) is installed at the end head of the other end of the pull rod (1); the adjusting nut is fixed on the pull rod (1) through threads;
two micro switches (8) are mounted on the support (2) on the outer side of the right vertical plate, the two micro switches (8) are respectively located on two axial sides of the pull rod (1) and are installed in a staggered mode, one micro switch is close to the right vertical plate and serves as an overload alarm switch, and the other micro switch is far away from the right vertical plate and serves as a rope loosening alarm switch;
when the steel wire rope is in a rope loosening critical state, the spring (3) pushes the spring cover (4), the pull rod (1) is driven by the adjusting nut to move towards the far end along the axial direction, the collision block (10) touches the far-end microswitch (8), and the stacker automatically gives an alarm and stops working; when the steel wire rope is in an overload critical state, the pull rod (1) drives the collision block (10) to move towards the near end along the axial direction, the collision block (10) touches the near-end microswitch (8), and the stacker automatically alarms and stops working.
2. The overload and slack rope safety apparatus for hoisting equipment of claim 1, wherein: the adjusting nut comprises a first adjusting nut (5) and a second adjusting nut (6), and the first adjusting nut and the second adjusting nut are both installed on the external thread in the middle of the pull rod (1) through threads and axially limit the spring cover (4).
3. The overload and slack rope safety apparatus for hoisting equipment of claim 1, wherein: the spring cover (4) is of a flat plate structure, and a limiting circular ring is arranged at the outer edge of one side of the flat plate along the circumferential direction; the inner diameter of the limiting ring is larger than the outer diameter of the spring (3), and the limiting ring is arranged on the outer side of the spring (3) to realize radial limiting of the spring (3).
4. The overload and slack rope safety device for hoisting equipment of claim 1, wherein: and a mounting platform is fixed on the support (2) on the outer side of the right vertical plate, and the two microswitches (8) are fixed on the mounting platform through switch seats (7).
5. The overload and slack rope safety apparatus for hoisting equipment of claim 1, wherein: the collision block (10) is of a cube structure.
6. The overload and slack rope safety apparatus for hoisting equipment of claim 1, wherein: the two opposite sides of the collision block (10) are respectively fixed with a collision plate (9), the main body of the collision plate (9) is parallel to the side wall of the collision block (10), and one end of the collision plate is inclined towards the pull rod (1) to form a bent chamfer structure; the bending structures of the two striking plates (9) are mirror images and can be in gentle contact with the two micro switches (8).
7. The overload and slack rope safety device for hoisting equipment of claim 1, wherein: the outer side of the collision block (10) is fixed through a retaining ring (11) and a set screw (12) which are fixed at the end of the pull rod.
8. The overload and slack rope safety apparatus for hoisting equipment of claim 1, wherein: and a reinforcing rib is arranged between the vertical plate and the support (2).
9. The overload and slack rope safety apparatus for hoisting equipment of claim 1, wherein: one end of the pull rod (1) is fixed with the steel wire rope through the rope clamp and the lantern ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122981274.1U CN216997426U (en) | 2021-11-29 | 2021-11-29 | Overload and rope-loosening safety device for hoisting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122981274.1U CN216997426U (en) | 2021-11-29 | 2021-11-29 | Overload and rope-loosening safety device for hoisting equipment |
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| Publication Number | Publication Date |
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| CN216997426U true CN216997426U (en) | 2022-07-19 |
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| CN202122981274.1U Active CN216997426U (en) | 2021-11-29 | 2021-11-29 | Overload and rope-loosening safety device for hoisting equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117383441A (en) * | 2023-12-07 | 2024-01-12 | 山西机电职业技术学院 | Overload self-protection crane |
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2021
- 2021-11-29 CN CN202122981274.1U patent/CN216997426U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117383441A (en) * | 2023-12-07 | 2024-01-12 | 山西机电职业技术学院 | Overload self-protection crane |
| CN117383441B (en) * | 2023-12-07 | 2024-02-13 | 山西机电职业技术学院 | Overload self-protection crane |
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